Process of producing coke and gas.



No. 833ml. PTEENTED 0OT.16, 190a.

F.LOGAN.

PROCESS OF PRODUCING COKE AND GAS.

APPLICATION FILED AUG.25. 1904.

3 SHEETS-SHEET 1.

inventor PATENTED 001". 16, 1906.

RIJOG'AN.

PROCESS OF PRODUCING COKE AND GAS.

APPLICATION FILED AUG. 25. 1904;.

3 SHEETS-SHEET 2.

3 Mentor, "*(Zbiani lyaw witnesses M W z/wm w PATENTED 00116; 1906.

- No. 883,471. v

F.LOGAN.

PROCESS OF PRODUCING 00KB AND GAS.

FERDINAND LOGAN, OF 'PHCENIXVILLE, PnNNsYnv N-m,

Fades-SS OF PRODUCING COKE AN Dr GAS;

Original application filed May 20, 1902, Serial No. 108,228.

To all whom itmaly concern:

Be it known that I, FERDINAND LOGAN, a. citizen of the United States, residing at Phoe-- nixville, in the county of Chester and State of Pennsylvania, have lnvented new and useful Improvements in Processes for the Production of Coke and Gas from Coke-Ovens, of.

whichthe followin is a specification.

My invention re ates to processes for the productlon and utilization of gas fromcokeovens; and one of the objects of the same is ize allthedesirable qualities of the materials to provide an economical and continuous process for producing coke and'saving the resultant gases. I

Another object is to rovide va process which can be continuous y carried out and which will be economical and which will util used in making coke and gas and at the same time will resultv in the production of a highgrade coke, saving the resultant gases, and

enriching, fixing, and storing such gases for subsequent use for heating-and lighting purposes. r

The process hereinafter'set forth is a division of a copending application'filed by me under date of May 20, 1902, bearing Serial No. 108,228, and in carryingout my'process I make use of the apparatus described and claimed in the application aforesaid, which is illustrated in the accompanying drawings, in which f Y Figure 1 is a front elevation of a pair of connected coke-ovens designed to carry out my process. Fig. 2 is a vertical central longitudinal section of the same looking from the rear side of the ovens. Fig; 3 is a plan view of the same.

In the drawings I have illustrated a pair of ovens properly connected by piping; but it will be understood that my invention contemplates the use of a series of such ovens connected by pipes provided with valves and cooks in order that commuincationmay be established between any two or more of the ovens in the series for'purposes which will hereinafter appear. I

In said drawings the numerals 1 2 designate two ovens of the ordina beehive type. These ovens are substantially identical in construction and are counterparts of the other groups of ovens in the series to be used; Hence a descri tion of one air will serve as a description or all. Eac of these ovens consists of a metallic dome or jacket. 3 lined with mineral wool or other suitable non-con Specification of LettersrPatent;

- Patented Oct. 16,1906.

Divided and this application filediiugnst 2 6 1904 Serial No. 222,172.

ductin material. and having an inner layer provide atthetop with'a char ingv eye 9, an

,interior?cokingrchamberlO,.an adoorll to permit the removal of the coke; The bottom 12.: of thexcoking-chambenlOis-formed 1 offire-brickorother. suitablematerial, and a numberrofperfbration's 13 are. formed in this bottom; for agmrpose whichwill ,be'herein d after describe A steameboileroffsuitabledimensions and I of ordinary construction is located at any GOIIVGIlleIlt point'near'the ovens, and. asteampipe 14 extends:from'the boiler along the front offthe-ovens, andlsaid' pipe is rovided with'stopl-cocks. 15?, one between eac pair of.

ovens inathe plant; Branchpipes 16 extend from the steam-pipe 14 into and through the wall of each oven, said. branch pipes termi-- nating; in the spacebetween the base 8 and" the: perforated bottom 12 of the cokingchamber; oil-supply from any suitable'source 0 front of'the ovens, and branchpi es-18 pass throughvthewalliof each oven an communicate with the coking chamber: at a point pipe 17 exten able stop-cock? a, r Fig. 3, while stop-cocks b are providedinrthebranch pipes 'lfi to cut off supply'along in a j above the charges Inorder: that the oil-sup- 7 ply may be out off from, any one ofthe ovens, each branchpipe 18 isprovided with a suitthe steamfrom anyone ormoreofithe ovens, aswillbereadily und'erstood. Stop-cocks 19 are provided between each pair of ovens in the oil-supply pipe 17'. Ataipointnear the 'top of the ovenxa. as pi-pe 20 connects the ovens and. establis es. communication be tween all of the'ovens of. the plant and the;

gasometer; avalve 21'" beingiprovide din said pipe between eachpair ofovens. A. pipe 22.

establishes communication between the up-i per portions ofrtlieovens and." at an interme- The process-to-be:carried outwith this a paratusis asfollowsz The ovens arerpro er y I oo" diate' point isprovidedlwith asuitable blower i 23 and a'cock'orsvalve 24 .1 I I chargedzwith bituminous-coal, andthe c arge in 'one'ofeachpair of'ovens is ignited infany valves being: closed to-cut; off allcommunicasuitable manner,each oven beingheated by the burning charge therein, the cocks and :10

tion with theothe'rovensoftheseries, The i from this 'door to the eye connection with the two ovens shown, let it be assumed that the charge in oven 1 has been heated for a certain time before heat is aplied to oven 2, communication being out ofi hetween the ovens. When oven 1 is in condition for coking off-that is to say, when the charge has reached its highest incandescent temperature and is in condition to form cokethe coking operation has been going on in oven 2. The valve 21 is then opened to establish-communication between the two ovens and to permit the gas-to flow to the gasome ter through pipe 20. The valve 24 is also 0 ened and the blower 23 is operated to force t e gas from oven 2 into oven 1. The cook 15 in the steam-pipe is then opened and steam is forced under the perforated bottom 12 in oven 1, the steam passing up into the incandescent coke, commingling with the gases conveyed from oven 2 and the gases driven off from the incandescent bed of coke, thereby becoming thoroughly mixed and super heated in the upper portion of oven 1, the

product thence being conveysd to the gasom-- At t eter through pipe 20. s time, if found necessary, the oil-cock 19 may be opened, and a (huantity of oil is thus mixed w th the gas an steam to enrich thegas product. In the operation of-the blower 23 and the valves 21 and 24:11; will .be understood that the blower may be reversed to serveeither as a draft or a. suction device, and the valves may be either opened or closed,

depending upon the direction whichit is.

desired to force the gases.

- After the coke in oven 1 has become cool and I has been removed therefrom gas from oven 2- in'tooven 1, in the mannerdescribed. By way of example, I:

. may

cocks are closed and the oven isrecharged and-ignited; When oven- 2 is in condition.

oven 1 has proceeded to for coking off and then steam is admitted a. certain degree,

under the perforated bottom of oven 2 and the cocksandvalves opened to discharge the previously 0 erate as follows: Let it be assumed that a erthe oven 1 has been in operation for about forty-eight hours, during which time the outlet at the been open and the charge is in a high state of 'incandescence, I am then ready to make gas and-coke ofi that is, cool ofi the incandescentcharge or body and drive off all the gases therefrom in orderto'produce the coke product, while oven 2 has been in operation for about twenty-four the, blast open and is releasing certain gases. The blast-openings in both. ovens are now.

asami thirty minutes to an hour,

not yet reached its the valves and top for. the blast has hours with the outlet for closed, and cock 21 may then be opened for about. thirty minutes to permit the highlyheated gas from oven 1 to expandand pass into oven 2 or to permit thecontents of the two ovens to commingle, horoughly mix, superheat, and fix the gas. Valve 21 may then be closed, valve 24 opened, and the fan 23 operated to draw the commingled gas by suction from oven 2 to oven 1 and force it out through pipe 20 to the gasorneter. Steam may then be admitted under the grate-bars of oven 1 to drive off the gases fromthe incandescent charge to make watengas and to cool the hot. coke or coke off, and if it is desired to enrich, the gas the oil-supply valves (1, are opened. When the gas hasbeen forced from oven 1 and the charge has become cool by the action of the steam and all the valves are closed, the

coke product may be removed and the oven -may be recharged and ignited. The time consumed in the process of driving out. the gas, cooling off, and removing the coke prode uct and recharging the oven may be from and hence if oven '2 is in condition for coking off in twenty-three hours after oven 1- has been recharged and ignited then the gas from oven 2 is permitted .to flow into oven 1 and is driven ofi to the gasometer by the fan in the same manner prevlously described. It will be understood, of course, that the times necessary to reach the as-making stage may vary considerably, epending upon the character of the coal used, the character of coke to be reduced, and the kind of gas it maybe desire to make. The process may then be made continuous, as there will always be some ovens in the plant ready for coking off and eachis connected; up with another oven which is undergoing thecoking process. the gas as it arises from the oven which is ready for coking ofi into the oven which has highest temperature is to. superheat and fix the entire productof the two ovens, and it has been found in ractice that this procedure insures a non-con ensable. gas product. Moreover, the comminglin off the ases arising from two ovens under di erent egreesof heat saves certain gases which would otherwise go to waste let-with the gaseous vapors lower temperature.

The object of forcing 5 through the out-- from theoven of 1' It-will be understood that when the steam.

is projected under the perforated bottom of.

thoroughly commingle and mix with the; gas

from another oven and be superheated and conveyed to a asometer, connected to eac This gasometer therefrom intothe up-..

the latter being" oven through the pipes 20' and said pipes having suitable branch pipes leading to the gasometer.

place, thereby combining the results of both ovens, the valve 24 being closed excepting during this particular period. By injecting I steam beneath a perforated bottom and in a closed oven the noxious gases also are removed from the coke-bed and are utilized as constituents in the final gas product. Moreover, the steam serves to cool the coke and does not cause it to disintegrate-or break up into small particles as to materially reduce its value and cause more or less waste of the coke product.

What I desire to secure by Letters Patent and claim is 1. The process of producing coke and gas, which consists in charging the oven with coal, heating the coal to incandescence, making water-gas by projecting a jet of steam under the charge in said oven when the charge has reached its highest incandescence or in condition for cokin oif, generating gas by distilling coal in anot er oven undergoing the coking operation, drawing the gas from this oven, forcing it into the oven first named when making water-gas, combining the two gases, and leading the product to the gasometer.

2 The process of producing gas and coke, WhlCh consists in charging an oven with coal, heating the coal to incandesoence, making water-gas by projecting steam under the charge 1n said oven when the charge has reached its highest incandescence or in condition for coking off, admitting oil to the oven above the char e, generating gas distilling coal in anot er oven under oing the coking operation, drawing the gas om thisovenforcing it into the oven first named, combining the two gases, and leading the product to the gasometer.

3; The process of producing gas and coke, which consists in charging an oven with coal, heating the coal to incandescence, making water-gas by projecting steam under the charge in'a closed oven, admitting oil above the charge, generating gas by distilling coal I in another oven undergoing ,thelcoking 0 'eration, drawing the gas from this oven an intermittently forcing the gaseous product from said oven into the first-named, combining the two gases, and leadin the resultant gas to a gasometer, substantial? as described. FERDINAN LOGAN.

Witnesses: ov I FRANCIS P. MALONE,

R. W. JANEWAY. 

